Back to EveryPatent.com
United States Patent | 6,240,061 |
Burroughs | May 29, 2001 |
A semi permanent enclosure for an optical data storage device has a first film dimensioned to overlie the read surface of the optical data storage device and a second film dimensioned to overlie the non-read surface of the optical data storage device. The enclosure includes a rim arrangement having an L-shaped cross-section extending around the periphery of the optical data storage device. The first film may have an optical couplant on the surface thereof destined for attachment to the optical data storage device. The optical couplant preferably has a refractive index compatible with that of the optical data storage device to minimize losses and distortion of signals. The optical couplant may also be used with the second film.
Inventors: | Burroughs; Trevor Alan (London, GB) |
Assignee: | Optidisc International Limited (Grand Cayman, KY) |
Appl. No.: | 517091 |
Filed: | March 1, 2000 |
Current U.S. Class: | 720/719 |
Intern'l Class: | G11B 007/24 |
Field of Search: | 369/291,290,284 360/135 346/135.1,137 |
3961656 | Jun., 1976 | Aggarwal | 369/291. |
4319252 | Mar., 1982 | Drexler | 346/135. |
4327830 | May., 1982 | Patel et al. | 206/303. |
4360733 | Nov., 1982 | Novak et al. | 250/361. |
4539573 | Sep., 1985 | Marchant et al. | 346/137. |
4556968 | Dec., 1985 | Pelkey et al. | 369/287. |
4590493 | May., 1986 | Inoue et al. | 346/135. |
4683562 | Jul., 1987 | Matsui et al. | 369/284. |
4736966 | Apr., 1988 | Haddock et al. | 283/69. |
4770047 | Sep., 1988 | Arditty et al. | 73/800. |
4879710 | Nov., 1989 | Iijima | 369/291. |
4920359 | Apr., 1990 | Arai et al. | 346/137. |
4983437 | Jan., 1991 | Merrick | 428/42. |
5020048 | May., 1991 | Arai et al. | 369/291. |
5299186 | Mar., 1994 | Tsurushima | 206/308. |
5458940 | Oct., 1995 | Woo | 428/64. |
5468424 | Nov., 1995 | Wienckoski | 252/609. |
5576550 | Nov., 1996 | Koppikar | 250/459. |
5774448 | Jun., 1998 | Shtipelman et al. | 369/291. |
5787069 | Jul., 1998 | Lowe et al. | 369/291. |
5912875 | Jun., 1999 | Lowe et al. | 369/291. |
Foreign Patent Documents | |||
0 300 733 | Jan., 1989 | EP. | |
0 375 298 | Jun., 1990 | EP. | |
0 599 655 | Nov., 1993 | EP. | |
0 959 076 | May., 1964 | GB. | |
2 080 598 | Feb., 1982 | GB. | |
2 217 507 | Oct., 1989 | GB. | |
2 279 799 | Oct., 1995 | GB. | |
4 245 039 | Sep., 1992 | JP. | |
94/14161 | Jun., 1994 | WO. | |
96/21928 | Jul., 1996 | WO. |